		*{
			margin: 0px;
			padding: 0px;
		}
		body{
			background: whitesmoke;
		}
		/*页眉内容(标题栏内容)*/
		#header{
		box-sizing: border-box;
		min-width: 1200px;
    	width: 100%;
    	height: 56px;
    	background: #FFE300;
		}
		/*页眉的所有li*/
		#header ul li{
			float: left;
			list-style: none;
		}
		/*页眉的左边内容*/
		.header1{
			/*border: 1px solid red;*/
			width: 20%;
			height:56px;
		}
		/*页眉左边内容的图片格式*/
		.header1 img{
			margin-top:18px;
			margin-left: 70px;	
			/*border: 1px solid red;*/
		}
		/*页眉的中间内容*/
		.header2{
			/*border: 1px solid red;*/
			width: 54%;
			height:56px;
			position: relative;
			margin-left: 0px;
			z-index: 2;
		}
		.header2 .header2_ul1>li>a{
			line-height: 56px;
			float: left;
			text-decoration: none;
			width: 75px;
			text-align: center;
			color: black;
			font-size: 15px;
			/*border: 1px solid red;*/ 
		}
		.header2 .header2_ul1>li:nth-of-type(6)>a{
			width: 100px;
		}
		.header2 .header2_ul1>li:nth-of-type(1)>a{
			font-weight:bold;
		}
		.header2 .header2_ul1>li:nth-of-type(8)>a{
			font-weight:bold;
		}
		.header2 .header2_ul1>li>a:hover{
			background: black;
			color:  #FFE300;
		}
		.header2 .header2_ul1>li:hover{
			background: black;
		}
		.header2 .header2_ul1>li:hover>a{
			color: #FFE300;
		}		
		/*发现的下标栏*/
		.header2 .header2_ul1>li:nth-of-type(2){
			position: relative;
		}
		.faxianxiabiao{
			position: absolute;
			left: 0%;
			top: 100%;
			display: inline-block;
			width:696px;
			height:160px;
			/*border: 1px solid red;*/
			overflow: hidden;
			box-shadow:0px 0px 4px darkgrey ;
			display: none;
			z-index: 5;
			background: white;
			border-radius: 0px 0px 10px 10px;
		}
		.faxianxiabiao>li{
			width:100px;
			height:40px;
			margin-left: -2px;
			text-align: center;
			line-height: 40px;
			position: relative;
			font-size: 14px;
		}
		.faxianxiabiao li:nth-of-type(15){
			border: 0.1px solid #DCDCDC;
			width:100%;
			height: 0.5px;
			margin-top: 20px;
		}
		.faxianxiabiao li:nth-of-type(17){
			border-left: 0px solid white;
		}
		.faxianxiabiao li:nth-of-type(18){
			border-left: 0px solid white;
		}
		.faxianxiabiao>li>a{
			text-decoration: none;
			color: black;
		}
		.faxianxiabiao>li>a:hover{
			background: #FFE300;
			border-radius: 5px;
			position: absolute;
			margin-left: -40px;
			width: 80px;
			margin-top: 5px;
			line-height: 30px;
		}
		.faxianxiabiaodibu a{
			text-decoration: none;
			color: black;
			margin-left: 15px;
			margin-right: 30px;
			float: left;
			margin-top: 15px;
		}
		.faxianxiabiaodibu a:hover{
			color: indianred;
		}
		.header2 ul li:nth-of-type(2):hover .faxianxiabiao{
			display: block;
		}
		.faxianxiabiao li i{
			position: absolute;
			right: 0%;
			top: 50%;
			margin-top: -8px;
			height: 16px;
			width: 1px;
			background:#DCDCDC ;
		}		
		/*职位的下标栏*/
		.header2 .header2_ul1>li:nth-of-type(4){
			position: relative;
		}
		.zhiweixiabiao{
			position: absolute;
			left: 0%;
			top: 100%;
			display: inline-block;
			width:140px;
			height:160px;
			/*border: 1px solid red;*/
			overflow: hidden;
			background: white;
			box-shadow:0px 0px 4px darkgrey ;
			border-radius: 0px 0px 10px 10px;
			display: none;
			z-index: 5;
		}
		.zhiweixiabiao li{
			width:140px;
			height:40px;
			line-height: 40px;
			font-size: 14px;
			margin-top: 10px;
			/*border: 1px solid red;*/
		}
		.zhiweixiabiao li a{
			text-decoration: none;
			color: black;
			margin-left: 22px;
		}
		.zhiweixiabiao li:hover{
			background:#FFE300;
		}
		.header2 ul li:nth-of-type(4):hover .zhiweixiabiao{
			display: block;
		}		
		/*活动的下标栏*/
		.header2 .header2_ul1>li:nth-of-type(5){
			position: relative;
		}
		.huodongxiabiao{
			background: white;
			position: absolute;
			left: 0%;
			top: 100%;
			display: inline-block;
			width:140px;
			height:260px;
			/*border: 1px solid red;*/
			overflow: hidden;
			box-shadow:0px 0px 4px darkgrey ;
			border-radius: 0px 0px 10px 10px;
			display: none;
			z-index: 5;
		}
		.huodongxiabiao li{
			width:140px;
			height:40px;
			line-height: 40px;
			font-size: 14px;
			margin-top: 10px;
			/*border: 1px solid red;*/
		}
		.huodongxiabiao li a{
			text-decoration: none;
			color: black;
			margin-left: 22px;

		}
		.huodongxiabiao li:hover{
			background:#FFE300;
		}
		.header2 ul li:nth-of-type(5):hover .huodongxiabiao{
			display: block;
		}
		/*正版素材的下标栏*/
		.header2 .header2_ul1>li:nth-of-type(6){
			position: relative;
		}
		.zhengbansucaixiabiao{
			background: white;
			position: absolute;
			left: 0%;
			top: 100%;
			display: inline-block;
			width:140px;
			height:260px;
			/*border: 1px solid red;*/
			overflow: hidden;
			box-shadow:0px 0px 4px darkgrey ;
			border-radius: 0px 0px 10px 10px;
			display: none;
			z-index: 5;
		}
		.zhengbansucaixiabiao li{
			width:140px;
			height:40px;
			line-height: 40px;
			font-size: 14px;
			margin-top: 10px;
			/*border: 1px solid red;*/
		}
		.zhengbansucaixiabiao li a{
			text-decoration: none;
			color: black;
			margin-left: 22px;

		}
		.zhengbansucaixiabiao li:hover{
			background:#FFE300;
		}
		.header2 ul li:nth-of-type(6):hover .zhengbansucaixiabiao{
				display: block;
		}		
		/*课程的下标栏*/
		.header2 .header2_ul1>li:nth-of-type(7){
			position: relative;
		}
		.kechengxiabiao{
			background: white;
			position: absolute;
			left: 0%;
			top: 100%;
			display: inline-block;
			width:140px;
			height:110px;
			/*border: 1px solid red;*/
			overflow: hidden;
			box-shadow:0px 0px 4px darkgrey ;
			border-radius: 0px 0px 10px 10px;
			display: none;
			z-index: 5;
		}
		.kechengxiabiao li{
			width:140px;
			height:40px;
			line-height: 40px;
			font-size: 14px;
			margin-top: 10px;
			/*border: 1px solid red;*/
		}
		.kechengxiabiao li a{
			text-decoration: none;
			color: black;
			margin-left: 22px;
		}
		.kechengxiabiao li:hover{
			background:#FFE300;
		}
		.header2 ul li:nth-of-type(7):hover .kechengxiabiao{
			display: block;
		}
		.kechengxiabiao li a img{
			width: 42px;
			height: 25px;
			float: right;
			margin-right: 20px;
			margin-top: 5px;
		}
		/*...点下标栏*/
		.header2 .header2_ul1>li:nth-of-type(8){
			position: relative;
		}
		.dianxiabiao{
			background: white; 
			position: absolute;
			left: 0%;
			top: 100%;
			display: inline-block;
			width:140px;
			height:260px;
			/*border: 1px solid red;*/
			overflow: hidden;
			box-shadow:0px 0px 4px darkgrey ;
			border-radius: 0px 0px 10px 10px;
			display: none;
			z-index: 5;
		}
		.dianxiabiao li{
			width:140px;
			height:40px;
			line-height: 40px;
			font-size: 14px;
			margin-top: 10px;
			/*border: 1px solid red;*/
		}
		.dianxiabiao li a{
			text-decoration: none;
			color: black;
			margin-left: 22px;
		}
		.dianxiabiao li:hover{
			background:#FFE300;
		}
		.header2 ul li:nth-of-type(8):hover .dianxiabiao{
				display: block;
		}
		/*页眉的右边内容*/
		.header3{
			/*border: 1px solid red;*/ 
			width:25%;
			height:56px;
		}
		.icon-sousuo{
			font-size: 20px;
			display: inline-block;
			/*margin-left: 140px;*/
			/*margin-top:20px ;*/	
		}
		.icon-yunshangchuan{
			font-size: 20px;
			display: inline-block;
			/*margin-left: 10px;*/
			/*margin-top:18px ;*/
		}
		.header3 ul li:nth-of-type(3){
			display: inline-block;
			width: 60px;
			margin-left: 20px;
			margin-top: 20px;
			font-size: 14px;
		}
		.header3 ul li:nth-of-type(4){
			display: inline-block;
			margin-top: 20px;
			margin-left: -15px;
			font-size: 14px;
		}
		.header3 ul li:nth-of-type(5){
			display: inline-block;
			width: 60px;
			margin-left: 10px;
			margin-top: 20px;
			font-size: 14px;
		}
		.header3 .header3_a{
			line-height: 56px;
			display: inline-block;
			text-decoration: none;
			width: 74px;
			text-align: center;
			color: black;
			/*border: 1px solid red;*/
		}
		.header3 .header3_a:hover{
			background: black;
			color:  #FFE300;
		}
		.header3 li:nth-of-type(1){
			/* margin-left: 100px; */
		}
		.header3 .header3_b{
			text-decoration: none;
			color: black;
		}
/*		页脚内容*/
		#footer{
			width: 100%;
   			height: 229px;
   			background: #282828;
			top: 100%;   
			/*margin-top: -229px;*/ 		
    		color: #666;
    		font-size: 14px;
    		box-sizing: border-box;
			min-width: 1200px;
    		/*border: 1px solid red;*/
		}
		#footer ul{
			/*border: 1px solid red;*/
			width: 1130px;
			margin: 0px auto;
			list-style: none;
		}
		/*页脚上面内容*/
		#footer .footer_top{
			/*border: 1px solid red;*/
			width: 1130px;
			list-style: none;
			height:114px;
			border-bottom: 1px solid #666;
			opacity: 0.9;
		}
		#footer .footer_top li a:hover{
			color: #DCDCDC;
		}
		#footer .footer_top li:nth-of-type(12) span:hover{
			color: green;
		}
		#footer .footer_top li:nth-of-type(13) span:hover{
			color: red;
		}
		#footer .footer_top li{
			float: left;
			margin-top: 52px;
			/*border:1px solid red;*/
			margin-left: 24px;
		}
		#footer .footer_top li:nth-of-type(1){
			margin-left: 0px;
		}
		#footer .footer_top li:nth-of-type(12){
			margin-left:200px;
		}
		#footer .footer_top li:nth-of-type(13){
			float: right;
		}				
		#footer .footer_top a{
			text-decoration: none;
			color: #666;
			line-height: 12px;
		}
		.icon-shouji{
			font-size: 24px;
			/*float: left;*/
			display: inline-block;
			line-height: 0px;
		}
		.icon-weixin{
			font-size: 20px;
		}
		.icon-weibo{
			font-size: 20px;
		}
		/*页脚下面内容*/
		#footer .footer_down{
			/*border: 1px solid green;*/
			width: 1130px;
			margin: 0px auto;
			list-style: none;
			height:114px;
			position: relative;
			opacity: 0.8;
		}
		#footer .footer_down .shangmianzi{
			height: 30px;
			/*border: 1px solid yellow;*/
			position: absolute;
			top: 30%;
		}
		.shangmianzi i{
			position: absolute;
			width: 1px;
			height: 12px;
			background: #666666;
			margin-top: 10px;
			margin-left: 20px;
			opacity: 0.6;
		}
		.xiamianzi i{
			position: absolute;
			width: 1px;
			height: 12px;
			background: #666666;
			margin-top: 10px;
			margin-left: 20px;
			opacity: 0.6;
		}
		#footer .footer_down .xiamianzi{
			position: absolute;
			height: 30px;
			/*border: 1px solid yellow;*/
			top: 60%;
		}
		#footer .footer_down .shangmianzi a{
			float: left;
			/*border:1px solid red;*/
			text-decoration: none;
			color: #666;
			font-size: 12px;
			line-height: 30px;
			margin-left: 40px;
		}
		#footer .footer_down .shangmianzi li{
			margin-left:-40px;
		}
		#footer .footer_down .xiamianzi a{
			float: left;
			/*border:1px solid red;*/
			text-decoration: none;
			color: #666;
			font-size: 12px;
			line-height: 30px;
			margin-left: 40px;
		}
		#footer .footer_down .xiamianzi li{
			margin-left:-40px;
		}
		#footer .footer_down .xiamianzi li:nth-of-type(6){
			float: right;
		}
		#footer .footer_down .shangmianzi :hover{
			color:#DCDCDC ;
			text-decoration: underline;
		}
		#footer .footer_down .xiamianzi li:nth-of-type(1) :hover{
			color:#DCDCDC ;
			text-decoration: underline;
		}
		#footer .footer_down .xiamianzi li:nth-of-type(2) :hover{
			color:#DCDCDC ;
			text-decoration: underline;
		}
		#zhiding{
			position: fixed;
			width: 50px;
			height: 50px;
			/*border: 1px solid red;*/
			background: #DCDCDC;
			text-align: center;
			line-height: 50px;
			color: white;
			border-radius:5px;
			display: none;
		}